What is H323 fast start

H.323 signalling consists of 4 steps - SETUP, CALL PROCEEDING, ALERTING, CONNECT.

 

After this, the H.245 media negotiation (IP address, codec, UDP port) is perfomed using a separate TCP connection. If using H.323 fast start, the H.245 media negotiation is performed within the initial SETUP message.

你可能感兴趣的:(tcp,Codec)